Cat Sudoku Level 75 Hint
Find a colored region with only a few safe cells, then compare those cells against the row and column limits.
Cat Sudoku Level 75 Strategy
Medium Level 75 uses a 7x7 board with 7 colored regions. It starts with 2 fixed cats to anchor the solve. Work from the tightest rows and regions before placing a cat.
Cat Sudoku Level 75 Solution
Solution cells: R1C3, R2C1, R3C7, R4C5, R5C2, R6C4, R7C6.